This Prim product is designed to exercise the arms in cases of rehabilitation. It helps to train the upper limb, either the wrist, shoulder or the rest of the arm, in cases of muscle decay. One or both arms can be worked. This product, therefore, serves as a therapeutic tool at home, weighs 1kg and its installation in doors provides more practicality at the time of doing the exercises. The design is easy to install, even with the 4.8cm thick metal bracket. Accessory weights can also be added for more specific routines, in order to strengthen muscle mass. The aim of this product is to make rehabilitation exercises at home easier. However, it is always advisable to have the opinion of a medical specialist.